Tephrina arenacearia
In 3 days ~20% in a week ~40%
Isturgia arenacearia, the sand bordered bloom, is a moth of the family Geometridae. It was first described by Michael Denis and Ignaz Schiffermüller in 1775. This species can be found in most of Europe (Sardinia, Corsica, Italy, Switzerland, Slovenia, Austria the Czech Republic, Poland, Slovakia, Hungary, Romania, Serbia and Montenegro, Bulgaria, Albania, North Macedonia, Greece, Crete, Ukraine and Russia) in the eastern Palearctic realm, and in the Near East.
These moths inhabit scrubs, dry steppes, xerothermic slopes, meadows and in areas cultivated with alfalfa. Isturgia arenacearia has a wingspan of 21–27 mm. The basic color of the wings is light brown. The forewings have, in the submarginal area, a darker brown band. A barely visible line is also present, usually with a small dark spot. A series of small dark spots are present along the edge. The hindwings are cream-colored, crossed by a brown line and with small dark spots on the border. All four wings are fringed. The underside of the wings is predominantly gray or light brown. The thorax shows the same color of the wings, while the abdomen and the head are yellow ocher.
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| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Tephrina arenacearia sighting in Bucharest on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 153rd most-seen of the 361 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
August
In that month about 20% of wildlife watchers report a Tephrina arenacearia in Bucharest on a given day, against under 5% in October to June, the lowest months.
Among the best
Of the 6 cities where we can rate Tephrina arenacearia sightings, Bucharest ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Kharkiv (Ukraine, about 10%).
Same family: Geometridae
The closest relatives of the Tephrina arenacearia that you can see in Bucharest (family Geometridae, Geometer Moths) are Willow Beauty (about 10%), Purple-Barred Yellow (about 10%) and Least Carpet (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Tephrina arenacearia is recorded against all the insects logged in Bucharest (11 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
